%0 Journal Article %A Saul Kripke %T An extension of a theorem of Gaifman-Hales-Solvay %J Fundamenta Mathematicae %D 1967 %P 29-32 %V 61 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-61-1-29-32/ %R 10.4064/fm-61-1-29-32 %G en %F 10_4064_fm_61_1_29_32